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This lesson, from the Technological Education Pathways Partnership (TEPP), uses a bathroom scale to explore the load cell technology used in weigh stations on interstate highways. A Word document explains the concept of the Wheatstone bridge measure of electrical resistance, and two PowerPoint presentations lead students in dismantling a bathroom scale and balancing the bridge of the scale's load cell. The lesson is designed to be used in introductory electricity and electronics courses.

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Date Issued 2014-04-27
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